kc streetcar north extension - 9 22 2015 · 2016-12-09 · attention: jason waldron, pe from: lucas...

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hdrinc.com Technical Memorandum September 22, 2015 Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately ½ mile HDR was asked for their opinion on the rough order of magnitude cost to extend the streetcar north approximately ½ mile from the intersection of 3 rd Street and Grand Boulevard to the riverfront area (approximately the intersection of River Front Rd and Front St). This effort includes looking at two potential alternatives. One includes accessing the riverfront via the existing Grand Boulevard viaduct and the other includes a new structure east of the Heart of America Bridge to access the riverfront. This evaluation should be considered a “high level” analysis that looked primarily at cost and at select areas (such as the existing structure) for feasibility. It is intended to support early decision making but should be considered preliminary and will require a more detailed study in order to validate the assumptions made and refine the cost estimate further. For the purpose of this initial memo, the lower cost option to use the existing Grand Boulevard viaduct was the main focus for evaluation. A new structure was discussed and would cost approximately $13.2 million (see appendix D) which is almost as much as the entire cost of building the streetcar on Grand Boulevard (not including vehicles and other non-construction costs). Given the cost difference and lack of definition (i.e. knowing where and how a new viaduct would cross into the riverfront area), our effort was focused on the lowest cost option to extend the existing line along Grand Boulevard using the existing streets and structures. Our preliminary analysis indicates that extending the alignment north to the riverfront on the existing Grand Boulevard structure is very likely feasible and would cost approximately $29.5 million in today’s (2016) dollars. A graphic of the proposed double track alignment can be found in Appendix A along with a detailed cost estimate in appendix B. The following sections of this memo include cost assumptions and a preliminary discussion on the potential structural feasibility of using the Grand Boulevard Viaduct for streetcars. Cost Assumptions Below are a number of assumptions that serve as the basis for the analysis. These are high level/general assumptions. A more detailed analysis would be needed to validate and further refine these assumptions and associated cost estimates. General cost assumptions x Unit costs – unless otherwise noted, unit costs are primarily based on the final unit costs for the base project with some escalation or adjustment for inflation/economy of scales. x Allowances – most of the allowances given, unless otherwise noted, are based on converting the base project total cost for a specific element into a “track foot” cost and applying it to the length of the extension. As an example signing and striping for the base project was converted to a track foot (TF) cost and then used as a TF allowance for the extension.

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Page 1: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Technical Memorandum

September 22, 2015

Attention: Jason Waldron, PE

From: Lucas L. Olson, PE; Cory Imhoff, PE

RE: Cost to extending KC Streetcar north approximately ½ mile

HDR was asked for their opinion on the rough order of magnitude cost to extend the streetcar north approximately ½ mile from the intersection of 3rd Street and Grand Boulevard to the riverfront area (approximately the intersection of River Front Rd and Front St). This effort includes looking at two potential alternatives. One includes accessing the riverfront via the existing Grand Boulevard viaduct and the other includes a new structure east of the Heart of America Bridge to access the riverfront. This evaluation should be considered a “high level” analysis that looked primarily at cost and at select areas (such as the existing structure) for feasibility. It is intended to support early decision making but should be considered preliminary and will require a more detailed study in order to validate the assumptions made and refine the cost estimate further. For the purpose of this initial memo, the lower cost option to use the existing Grand Boulevard viaduct was the main focus for evaluation. A new structure was discussed and would cost approximately $13.2 million (see appendix D) which is almost as much as the entire cost of building the streetcar on Grand Boulevard (not including vehicles and other non-construction costs). Given the cost difference and lack of definition (i.e. knowing where and how a new viaduct would cross into the riverfront area), our effort was focused on the lowest cost option to extend the existing line along Grand Boulevard using the existing streets and structures.

Our preliminary analysis indicates that extending the alignment north to the riverfront on the existing Grand Boulevard structure is very likely feasible and would cost approximately $29.5 million in today’s (2016) dollars. A graphic of the proposed double track alignment can be found in Appendix A along with a detailed cost estimate in appendix B. The following sections of this memo include cost assumptions and a preliminary discussion on the potential structural feasibility of using the Grand Boulevard Viaduct for streetcars.

Cost Assumptions Below are a number of assumptions that serve as the basis for the analysis. These are high level/general assumptions. A more detailed analysis would be needed to validate and further refine these assumptions and associated cost estimates.

General cost assumptions x Unit costs – unless otherwise noted, unit costs are primarily based on the final unit costs for the base

project with some escalation or adjustment for inflation/economy of scales. x Allowances – most of the allowances given, unless otherwise noted, are based on converting the

base project total cost for a specific element into a “track foot” cost and applying it to the length of the extension. As an example signing and striping for the base project was converted to a track foot (TF) cost and then used as a TF allowance for the extension.

Page 2: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Specific assumptions by FTA Standard Cost Categories (SCC)

SCC 10 – Guideway and Track elements x Track length - assumed double track from 3rd and Grand Boulevard to the intersection of River Front

Rd and Front St. Note that neither the northbound nor the southbound tracks would use any part of the existing non-revenue track for operating on the extension (i.e. there would be 3 tracks between 3rd and 2nd on Grand, one for the existing non-revenue and 2 new revenue tracks in the existing auto lanes for NB and SB streetcars that straddle the existing, median running non-revenue track).

x Special Trackwork south – at the sound end (3rd and Grand), it was assumed that 2 turnouts would be needed to connect the NB and SB extension track with the existing loop track (creating a wye). In addition, a diamond crossing between the existing yard lead and NB extension track at 2nd and Grand Boulevard would be needed.

x Special Trackwork north – at the north end, a center platform with double track has been assumed to allow for two cars at the platform and provide the ability to “layover” a streetcar at the northern terminus. The vehicle would switch tracks (NB to SB) by using a turnout and tail track east of the center stop. Note – A double crossover to the west of the stop would provide the most efficient and flexible operations but was not used given a substantial ($1 million plus) cost diferential over the single turnout and tail track assumed.

x Existing structure – the existing Grand Boulevard structure has excess capacity and sufficient service life to be considered for the streetcar. Based on limited evaluation (see additional detail on the structural evaluation later in this memo), it appears the existing structure would likely accommodate the additional dead load and live loads of the streetcar. This assumes an approach to milling off the existing wearing surface and installing a shallow (4.5”) track slab/overlay on the existing deck similar to the approach that was used on the base project for the Delaware Street and Main Street Viaduct structures.

SCC 20 – Stations, Stops, etc. x One station was assumed to be added at the riverfront terminus. The cost was based on the average

cost of the existing system with some inflation. x The existing streetcar stop at 3rd and Grand may require modification, adjustment or relocation

depending on the final configuration of the track connections at 3rd and Grand. It is a risk element that will remain unknown without further study.

SCC 30 – Support Facilities: Yards, Shops, etc. x It was assumed that an additional storage track would be built at the existing maintenance facility.

This would include a new turnout and additional track. The purpose would be to accommodate an additional streetcar vehicle and provide additional flexibility within the yard.

SCC 40 – Sitework & Special Conditions x Demo/Roadway – the per-track cost of the base project was applied as an allowance for the

extension. x Utilities – an allowance of $300/TF was used for the at-grade segments of the riverfront extension.

This is entirely an assumption, as no utility information was part of these preliminary evaluations.

Page 3: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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SCC 50 – Systems x A new substation is very likely to be required for this extension. Given the distance (approximately ½

route-mile), one (1) substation of similar size to the existing substations should suffice and was assumed in the cost estimate.

x OCS was assumed for the entire length, and the assumed cost was based on the base project pricing. This assumption was applied both on and off the structure.

x Traffic signals – 1 modified and 2 new traffic signals were assumed for the north extension at the intersections of 3rd/Grand (modified), 2nd/Grand (new) and River Front Rd/Front St (new).

60 – ROW, Land, Etc. x It was assumed that all improvements for the extension would be within public right-of-way.

70 – Vehicles x It was assumed that 1 vehicle would be needed, at a minimum, to maintain the existing peak

headways at 10 minutes with the approximate ½ mile extension. The current system, with 3 vehicles in operation, can operate a 10 minute headway which equates to approximately 1 vehicle per track mile (including the spare/4th vehicle). With the addition of ½ mile/1 track mile of track, using the same ratio (1 vehicle/track mile) a 5th vehicle would be needed. This would allow for 4 vehicles operating and 1 spare or a 25% spare ratio. While this is above the typical 20% desired spare ratio, it only includes 1 spare and therefore it may be advisable, if within the budget, to consider purchasing a 2nd spare vehicle.

80 – Professional Services x Similar to the base project and other streetcar projects, it assumed that the professional services

would be approximately 30% of the construction cost. This would cover the City, other agency and consultant costs for design, construction management and project management support.

90 – Unallocated Contingency x Given the high level of the estimate, an unallocated contingency was used in lieu of splitting the

contingency between allocated and unallocated contingencies. 30% was used for this estimate given the limited level of detail. As additional detail is developed the contingency should reduce.

Grand Boulevard Viaduct – Structural Considerations The plans for this bridge were released for construction on August 8, 1997. The design criteria was the 1992 Editions of the AASHTO Standard Specifications (LFD) with interims through 1995. The design followed normal practice at the time utilizing MODOT criteria in addition to the AASHTO criteria for HS20 Modified Loading and a 35psf future wearing surface allowance. The structure is a continuous composite chorded plate girder. Select plan sheets from the record drawing set are attached for reference and can be found in Appendix C.

Spans range from 73’-0” to 122’-0” with a total structure length of 1302’-6”. The roadway width is 29’-8” with a 32-0” out-to-out deck width. The deck is 8 ½” thick with 5 ½” cast-in-place concrete on 3” precast prestressed panels. Clear cover to top reinforcement is 2 ¾”.

Page 4: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Vertical clearance to the coal chute near the west end of the bridge is approximately 22.65’. Vertical clearance to the superstructure of the Heart Of America Bridge is approximately 19.12’ and the Max vertical grade per the as-built drawings is 5.16%.

The Inventory Rating is 38 Tons, the Operating Rating is 63 Tons and the Sufficiency Rating is 77.6 based on information obtained from MoDOT’s current Structural Inventory and Appraisal Sheet. Deck, Superstructure and Substructure all received condition ratings of 8 out of 10. The structure is in good condition, with repair of general deterioration recommended at an estimated cost of approximately $5 Million (FY 2015). There are no load postings and no known condition issues of serious concern. The current SI&A is also attached.

Based on results of prior studies completed on structures along Main Street and Grand Boulevard for the first phase of streetcar, this structure compares favorably and should be a good candidate for retrofits necessary to support streetcar infrastructure and loading.

The combination of an unutilized 35psf future wearing surface allowance, original design loading of HS20 Modified (25% increase over and above typical HS20 loading) , 2 ¾” clear cover to top mat of deck reinforcing, rating information and condition information are all indicative of a structure that can be successfully retrofitted to support streetcar infrastructure. The method of construction would include milling 1 ½” of existing concrete and overlaying (with embedded streetcar rails) with a 4 ½” low slump concrete overlay. The net increase in dead load is 37.5psf whereas the original allowance for future wearing surface was 35psf.

Items of concern include the need to reset grated drain inlets, resetting finger plate expansion joints, vertical clearances for overhead catenary systems below the coal chute and Heart of America Bridge and the use of precast prestressed panels for deck forming. Further, in-depth studies of these items would need to be completed to confirm that a streetcar retrofit is reasonable, cost effective and maintainable. However, these items are not deemed to be fatal flaws at this time.

Conclusion The double track on Grand Boulevard alternative appears to be feasible and substantially cheaper than building a new structure. The total cost is approximately $29.5 million in 2016 dollars. For each year beyond 2016 an annual inflation factor of approximately 3% should be used to approximate the cost increase due to inflation. In order to further define the project details, evaluate feasibility and refine the cost estimate, additional analysis will be required. Please review this initial memo and findings and let HDR know if you have additional questions or would like additional detail.

Attachments Appendix A – Graphic of Proposed Extension on Grand Boulevard Appendix B – Cost estimate for Grand Boulevard alternative using the existing viaduct Appendix C – Select structural drawings/load ratings of the Grand Boulevard Viaduct Appendix D – Rough order of magnitude cost for a new structure

Page 5: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Appendix A – Graphic of Proposed Extension on Grand Boulevard

Page 6: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Appendix B – Cost estimate for Grand Boulevard alternative using the existing viaduct

Page 7: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

Kansas City Streetcar - Waterfront Extensions Order of Magnitude Cost

Double Track on Grand Blvd Date 9.18.2015

ITEM Qty Unit Unit Price Subtotal  10 GUIDEWAY & TRACK ELEMENTS (ROUTE MILES)   $    4,177,452.38  GUIDEWAY: AT‐GRADE IN MIXED TRAFFIC   $       130,900.00 BASE/SUBGRADE ALLOWANCE 3,740 TF 35.00$ 130,900.00$  GUIDEWAY: AERIAL STRUCTURE   $       790,200.00 MILL 1.5" FROM BRIDGE DECK 4,500 SY 5.57$ 25,075.35$ PLACE 4.5" CONCRETE WEARING COURSE 4,500 SY 83.73$ 376,779.15$ OCS BLISTERS ON BRIDGE (2 @ 80' CENTERS) 34 EA 3,300.00$ 112,200.00$ MISC. CONDUITS ON BRIDGE (ALLOWANCE) 1 LS 276,145.50$ 276,145.50$  TRACK:  EMBEDDED   $    2,356,352.38 EMBEDDED TRACK, 112 TRAM ON STEEL TIES 3,440 TF 350.23$ 1,204,794.30$ EMBEDDED TRACK, 112 TRAM OVER GRAND VIADUCT 2,730 TF 372.37$ 1,016,558.09$ EMBEDDED TRACK 112 TRAM PRECURVED 300 TF 450.00$ 135,000.00$  TRACK:  SPECIAL (SWITCHES, TURNOUTS)   $       900,000.00 25M EMBEDDED TURNOUT 3 EA 200,000.00$ 600,000.00$ EMBEDDED DIAMOND CROSSING 1 EA 300,000.00$ 300,000.00$  20 STATIONS, STOPS, TERMINALS, INTERMODAL (NUMBER)   $       150,000.00  AT‐GRADE STATION, STOP, SHELTER, MALL, TERMINAL, P   $       150,000.00 NEW STREETCAR STOP 1 EA 150,000.00$ 150,000.00$  30 SUPPORT FACILITIES: YARDS, SHOPS, ADMIN. BLDGS   $       373,064.24  YARD AND YARD TRACK   $       373,064.24 NEW YARD TRACK (FOR ADDITIONAL STORGE) 300 TF 326.88$ 98,064.24$ 25 METER #4 YARD TURNOUT 1 EA 175,000.00$ 175,000.00$ SITE CIVIL ALLOWANCE FOR YARD 1 LS 100,000.00$ 100,000.00$  40 SITEWORK & SPECIAL CONDITIONS   $    4,252,951.32  DEMOLITION, CLEARING, EARTHWORK   $       130,900.00 DEMO ALLOWANC 3,740 TF 35.00$ 130,900.00$  SITE UTILITIES, UTILITY RELOCATION   $    1,122,000.00 UTILITY ALLOWANCE 3,740 TF 300.00$ 1,122,000.00$  AUTOMOBILE, BUS, VAN ACCESS WAYS INCLUDING ROADS,   $       830,090.00 ROADWAY/SIDEWALK ALLOWANCE 3,740 TF 140.00$ 523,600.00$ SIGNAGE ALLOWANCE 3,740 TF 6.00$ 22,440.00$ STRIPING ALLOWANCE 6,470 TF 15.00$ 97,050.00$ STREET LIGHTING ALLOWANCE 3,740 TF 50.00$ 187,000.00$  TEMPORARY FACILITIES AND OTHER INDIRECT COSTS DURI   $    2,169,961.32 CONTRACTOR INDIRECTS ALLOWANCE 20% LS 10,849,806.62$ 2,169,961.32$  50  SYSTEMS   $    4,066,300.00  TRAFFIC SIGNALS AND CROSSING PROTECTION   $       750,000.00 TRAFFIC SIGNAL ALLOWANCE (NEW/MODIFIED) 3 EA 250,000.00$ 750,000.00$  TRACTION POWER SUPPLY:  SUBSTATIONS   $    1,250,000.00 NEW SUBSTATION 1 EA 1,250,000.00$ 1,250,000.00$  TRACTION POWER DISTRIBUTION:  CATENARY AND THIRD R   $    2,066,300.00 OCS FOUNDATIONS ALLOWANCE 3,740 TF 120.00$ 448,800.00$ OCS POLES, SUPPORTS AND CABLE ALLOWANCE 6,470 TF 250.00$ 1,617,500.00$

9:26 AM 9/22/2015 1 of 2

Page 8: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

Kansas City Streetcar - Waterfront Extensions Order of Magnitude Cost

Double Track on Grand Blvd Date 9.18.2015

ITEM Qty Unit Unit Price Subtotal  60 ROW, LAND, EXISTING IMPROVEMENTS   $                        ‐  70 VEHICLES (NUMBER)   $    5,750,000.00  STREETCAR VEHICLE  1  EA  $    4,750,000.00   $    4,750,000.00  VEHICLE CONSULTANT  1  LS  $       750,000.00   $       750,000.00  SPARE PARTS  1  LS  $       250,000.00   $       250,000.00  80 PROFESSIONAL SERVICES   $    3,905,930.38  PROFESSIONAL SERVICES ALLOWANCE (30%)  1  LS  $    3,905,930.38   $    3,905,930.38  90 UNALLOCATED CONTINGENCY  30% LS  $ 22,675,698.33   $    6,802,709.50  100  FINANCE CHARGES 

TOTAL COST  $ 29,478,407.82 2016 Dollars

9:26 AM 9/22/2015 2 of 2

Page 9: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Appendix C – Select structural drawings/load ratings of the Grand Boulevard Viaduct

Page 10: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 11: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 12: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 13: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 14: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 15: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 16: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 17: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 18: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 19: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately
Page 20: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Page 21: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Page 22: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

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Appendix D – Rough order of magnitude cost for a new structure

Page 23: KC Streetcar north extension - 9 22 2015 · 2016-12-09 · Attention: Jason Waldron, PE From: Lucas L. Olson, PE; Cory Imhoff, PE RE: Cost to extending KC Streetcar north approximately

Description Quanity Unit Unit Cost Total Est. Cost

New Bridge Into East Bottoms 40500 SF $225 $9,112,500

$9,112,500$1,366,875$911,250$911,250$911,250

$13,213,125

Holmes Into East Bottoms - New Transit Bridge On Independent Alignment

Total Estimated Construction Cost =Construction Cost Contingency @ 15% =

Kansas City, Missouri Internal Costs @ 10% =

Inclusions: barriers, deck, girders, track embedded on structure, bridge piers, foundations, and professional services following FTA averages.

Exclusions: right of way, embankment, special, non-standard architectural treatments for the structure, systems elements (OCS), signals, lighting, track on bridge approach, items not specifically included in inclusions (above).

Assumptions: weathering steel plate girders, 23’-6” clearance over railroad, direct fixation track, no other modes on structure other than streetcar, one 5’-0” wide emergency walkway is provided down the center of the structure versus two (one on each side), vehicle is assumed to be a 2.65M wide vehicle(CAF vehicle for the base project).

All costs are in 2016 dollars.

Final Design @ 10% =Construction Services @10% =

Total Estimated Project Costs =